2009-12-14 Marco Martin <notmart@gmail.com>

2009-12-14  Marco Martin  <notmart@gmail.com>

        Reviewed by Kenneth Rohde Christiansen.

        In the Scrollbar painting of the Qt theme integration,
        intersects any previous clip rects with the one needed to paint the scrollbar.
        This fixes the painting in QGraphicsview, when the parent of the widget that
        paints the QWebPage has the QGraphicsItem::ItemClipsChildrenToShape set and
        a piece of the scrollbar should be cipped away
        https://bugs.webkit.org/show_bug.cgi?id=30366

        No new tests.

        * platform/qt/ScrollbarThemeQt.cpp:
        (WebCore::ScrollbarThemeQt::paint):

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@52122 268f45cc-cd09-0410-ab3c-d52691b4dbfc